baber/WOPTO huggingface dataset:
Patent GB-897436-A (GB)
Title: Colouration process for textile materials comprising aromatic polyester fibres
Inventor: EATON DAVID CRAWFORD
IPC: C09B57/12
Filed: 1960-02-17
Abstract: Textiles of aromatic polyesters are coloured by applying an aqueous dispersion of a dyestuff of the naphthoylene-aryl-iminazole or naphthaloperinone series which is free from sulphonic and carboxylic acid groups and is of the formula <FORM:0897436/IV (c)/1> wherein R represents an o- or peri-arylen, radical and the naphthalene nucleus A carries' in one of the free peri-positions, a radical R1CO-wherein R1 represents an alkyl, substituted alkyl, or aralkyl or an aryl radical.  The radical R may be o-phenylene or 1 : 8-naphthylene substituted, if desired, by nitro, cyano, halogeno, alkoxy, alkyl or substituted alkyl groups, or the radical R may be <FORM:0897436/IV (c)/2> Dyeing is preferably effected at the boil in the presence of a carrier, or at temperatures above 100 DEG C. in the absence of a carrier.  Numerous examples of the dyeing of polyethylene terephthalate fibres are given.  The dyestuffs are made by condensing a dicarboxylic acid of the formula <FORM:0897436/IV (c)/3> wherein the naphthalene nucleus A is substituted by R1CO- as above, with a diamine R(NH2)2, the condensation being effected by heating in, for example, acetic acid or nitrobenzene.  A mixture of at least two isomers is usually obtained, the mixture being employed as such, or the isomers may first be separated by crystallisation.  Specification 789,310 is referred to.
Patent GB-201863-A (GB)
Title: Improvements relating to resilient tyres for vehicles
IPC: B29D30/04
Filed: 1923-02-26
Abstract: 201,863. Dalbey, J. H. Feb. 26, 1923. Non-metallic elastic bodies and cores.-A resilient tyre filler is made with greater radial and less transverse dimensions than the normal corresponding dimensions of the cover so as to allow for the flattening of the filler in use. The filler 5 and wedge ring 6 of sponge rubber are compressed by the cover, which assumes the form shown by dotted lines and has then a radial dimension sufficiently great to allow for permanent flattening to a predetermined shape.
Patent GB-160077-A (GB)
Title: Improvements in devices applicable to torpedo-carrying aircraft
IPC: B64D1/06
Filed: 1920-02-25
Abstract: 160,077. Blackburn Aeroplane & Motor Co., Ltd., and Thornton, A. C. Feb. 25, 1920. Launching torpedoes.-Relates to apparatus for dropping torpedoes from aircraft, and consists in the provision of a vertically depending leg 1 having a tine 5 which extends into or beyond the plane of rotation of the usual vanewheel 4 at the nose of the torpedo 3, whereby the vane-wheel is held against rotation after the usual safety-pin is removed until the torpedo is dropped. A fork 6 fitted to the end of the leg 1 embraces the nozzle 2 between the vane-wheel and the torpedo body. The leg is hinged at 7 to a bracket 8 secured beneath the radiator of the aircraft, and is connected by a flexible, member 9 to a spring 12, which normally holds the leg against the nose of the torpedo, and causes the leg to fold up against a stop 13, as shown in dotted lines, when the torpedo is dropped.
Patent GB-1132103-A (GB)
Title: Spark ignition circuits
Inventor: CULLINS KEITH DOUGLAS
IPC: F02P7/03
Filed: 1965-02-10
Abstract: 1,132,103. Ignition systems. ROTAX Ltd. Jan. 7, 1966 [Feb. 10, 1965], No. 5730/65. Heading F1B. An ignition system comprises in combination a capacitor 31, a plurality of parallel circuits connected across the capacitor each parallel circuit including a controlled breakdown device 33, 35 or 37 and a spark gap 34, 36 or 38, in series, means for charging the capacitor, a plurality of transformers 25-27 equal in number to the number of controlled breakdown devices, the secondary windings of the transformers being connected to the control electrodes of the controlled breakdown devices respectively so that when the primary winding of a transformer is energized a bias will be applied to the control electrode connected to the secondary winding of the energized transformer and switch means 12 operable selectively to energize the primary winding of one of the transformers, the arrangement being such that as the voltage across the capacitor increases the breakdown device having its control electrode connected to the secondary winding of the energized transformer will conduct to provide a discharge path for the capacitor. The controlled breakdown device may be a control gap or a conventional grid-control tube or a semi-conductor device. Thyratrons and thyristors are mentioned means not shown may be provided for limiting the voltage applied to the control electrode of the breakdown device.
Patent GB-1409363-A (GB)
Title: Hydropneumatic suspension unit for a road vehicle
IPC: B60G17/048
Filed: 1973-02-06
Abstract: 1409363 Self-levelling suspension units NISSAN MOTOR CO Ltd 6 Feb 1973 [8 Feb 1972 (2)] 5771/73 Heading F2S A self-levelling suspension unit has a threeway control valve which, depending on the length of the unit, connects the cylinder chamber 12 to an inlet passageway 48 and source, or an outlet passageway 50 and sink, or isolates it (as shown), the three-way control valve comprising a first floating piston 52 sliding in an axial bore in the cylinder head 14, a second floating piston 80<SP>1</SP> sliding in an axial bore in the first floating piston 52, and three springs 66, 92 and 108 acting on the floating pistons. In operation, with the unit the desired length as shown, the springs 66 and 92 baalnce the spring 108 with the floating pistons 52, 80<SP>1</SP> isolating the cylinder chamber 12 from the inlet and outlet passageways 48, 50. Should contraction of the unit occur, owing to increase in load, (Fig. 7, not shown), the spring 108 urges (via a push rod 94 and the second floating piston 80<SP>1</SP>) the first floating piston 52 upwards against the bias of the spring 66 to a position in which the inlet passageway 48 is in communication, via an annular recess 56, with the cylinder chamber 12, enabling supply of fluid to the unit to extend it back to the predetermined length. On the other hand, should extension of the unit occur, owing to decrease in load, (Fig. 8, not shown), the push rod 94 loses contact with the second floating piston 80<SP>1</SP>, the spring 66 maintains the first floating piston 52 in a position to close the inlet passageway 48, and the spring 92 moves the second floating piston 80<SP>1</SP> into a position in which the cylinder chamber 12 is in communication with the outlet passageway 50 (via passageways 84, 82 in the piston 80<SP>1</SP> and passageway 78 in the piston 52), allowing fluid to flow from the unit until it regains its predetermined length. Passages 21 and 90 connecting opposite sides of the floating pistons 52, 80<SP>1</SP>, respectively, may be provided with valves (Figs. 5 and 10, not shown) which offer more restriction to flow in one direction than the other. Thus the floating piston 52 can move only slowly upwards to open the inlet passageway, but quickly downwards to close it, and the floating piston 80<SP>1</SP> can move only slowly downwards to open the outlet passageway but quickly upwards to close it. This prevents over-correction. The embodiment of Fig. 1 (not shown) has a spring- biased sleeve (110) projecting from the push rod 94 to prevent shocks when the push rod 94 re-engages the floating piston 80<SP>1</SP> on recovery from extension. Level selection.-In the embodiments of Figs. 4 and 9 (not shown) the seat 32 for the spring 108 is movable by fluid pressure supplied from outside through the piston-rod, to alter the length of the unit at which the three springs 66, 92 and 108 in equilibrium hold the floating pistons 52, 80<SP>1</SP> in a poistion to close the inlet and outlet passageways.
Patent GB-840793-A (GB)
Title: Improvements in or relating to electro-mechanical transducer mountings
Inventor: YORSTEN JAMES
IPC: B06B1/06
Filed: 1955-02-25
Abstract: 840,793. Piezo-electric crystal mountings. MULLARD RADIO VALVE CO. Ltd. May 25, 1956 [Feb. 25, 1955], No. 5783/55. Class 40 (8). [Also in Group XXII] A method of mounting a piezo-electric crystal comprises depositing on one face of the crystal a thin layer of metal such as silver or gold, casting in a controlled or substantially neutral atmosphere a slug of a low - melting point metal of high acoustic attenuation, e.g. a silverlead eutectic, on to the metal-coated face of the  crystal while maintaining the other face against a correspondingly shaped surface and cooling the crystal and the cast slug by controlled removal of heat from the said surface. The crystal 1 is held in the mould 2 by a plug 7 and plaster 3 and a metal slug placed in proxi-' mity to the bore 5. The assembly is placed in a heating chamber having a controlled or neutral atmosphere, e.g. N, and heated until the slug melts and flows down on to the face of the crystal. The extension 8 of the plug 7 is then immersed in water to chill the plug until the plaster may be softened and the plug, crystal and attached stub withdrawn. The metal layer is preferably provided by silk screen printing on to the face of the crystal a layer of a silver flux paste, and then firing at about 500-530‹C.
Patent GB-410932-A (GB)
Title: Improvements in hand brushes and handles therefor
IPC: B25G1/06
Filed: 1933-02-25
Abstract: 410,932. Brush handles. WHITEHEAD, T., and WHITEHEAD, S., (trading as WHITEHEAD BROS.), 37, Bury Street, Salford. Feb. 25, 1933, No. 5785. [Class 61 (i).] A reversible handle attachment for brushes is formed as a steel stamping B with a flat portion b secured to the brush stock A by screws b<2>, b<3> with or without side flanges b<1> to engage the edges of the stock and with a bent-over socket c at the end to receive the handle C or the socket end may be extended to form a handle.
Patent GB-1101601-A (GB)
Title: Improvements in or relating to non-linear scale electrical instrument
IPC: G01R15/00
Filed: 1965-02-10
Abstract: 1,101,601. Electric meters; indicating apparatus. SANGAMO WESTON Ltd. Feb. 10, 1965 [Feb. 17, 1964], No. 5793/65. Headings G1J and G1Q. A spring-controlled electric meter has an  auxiliary spring which assists the main control spring 28 over a part of the meter's range, thus providing a non-linear scale. The auxiliary spring has one end 46 secured to the moving part of the meter and the other end 49 is free so that, in the lower portion of the deflection range, it moves bodily with the movement and is ineffective. At a predetermined deflection the free end 49 of the auxiliary spring engages a fixed stop 76 so that the scale law changes. The spring may be pre-stressed so that part of the scale is suppressed. There may be a plurality of auxiliary springs operative in succession with increasing deflection. In the moving coil meter shown, the two springs are coaxial spirals both fastened at their inner end to the spindle 47 which rotates with the pointer and coil. The outer end of the main spring 28 is secured to an adjustably positionable fixed element 79. The outer end portion of the auxiliary spring rests against an L-shaped bracket 70 which moves with the spindle, but which may be adjustably rotated with respect to it to pre-stress the spring. The extreme outer end 49 of the auxiliary spring projects beyond the bracket so as to engage, at the predetermined position, the fixed stop 76. The latter's position is adjustable. As viewed in Fig. 2 the meter deflection is anticlockwise from the zero pointer position 80, and the weighted lower end 82 of the pointer engages stops 72, 74 at zero and full scale respectively. The Specification acknowledges that it is known to provide an auxiliary spring mounted on a non- movable part of a meter and engaged by the moving part at a predetermined deflection, and provides, Fig. 1 (not shown), an example of a meter of this known form. It also provides, Figs. 6 to 8 (not shown), diagrams of various scale laws obtainable by the use of one or more auxiliary springs.
Patent GB-1039491-A (GB)
Title: Loom heald frames
IPC: D03C9/06
Filed: 1964-02-12
Abstract: To facilitate threading the healds 6 on to their rails 2, without detaching the heald frame end supports 3, the rails 2 are connected to the shafts 1 by spring loaded slidable catches 11 which, when disconnected, enable the rails to be flexed from the plane of the frame for threading.
Patent GB-153334-A (GB)
Title: Electric radiators
IPC: F24C7/06
Filed: 1918-09-20
Abstract: 153,334. Poole, C. O., Manifold, R. G., and Huntingdon, A. R. Sept. 20, 1918. Electric radiators.-A radiator comprises an annular heating-element 14 situated at the focus of a reflector 8, which consists of a surface formed by the rotation of a parabola about an axis parallel to its own. The back of the reflector is formed as a closed box 5 which is pivoted at 6 to a stand through which the leads 24 pass. A guard D fixed to the central cusp portion of the reflector covers the face of the radiator. The heating- element 14 consists of a wire coil wound on the outer periphery of a porcelain ring 15 supported by a bolt 19 carried by the reflector. The ring may be grooved as shown in Fig. 4 to provide a flange 40 to prevent direct radiation from the coil. In a modification, the coil is wound so as to embrace the ring, which may be perforated. Reference has been directed by the Comptroller to Specification 148,481.
Patent GB-729522-A (GB)
Title: Improvements relating to processes for regenerating decolourising resins
IPC: B01D15/00
Filed: 1953-03-03
Abstract: A bed of decolorising synthetic resin is brought to a pH value corresponding to neutrality by flushing it, after regeneration with alkali, with a solution of an ammonium salt having a weakly acid reaction, and finally with water.  A filter containing 3,200 litres of resin was regenerated with 4,800 litres of a 5 per cent. sodium carbonate solution.  The filter was washed with 13,000 litres of water, its pH then being in the range 11 to 12.  It was then flushed with 3,000 litres of a 5 per cent. ammonium chloride solution, the pH of the liquid finally flowing out of the filter being 6.  Finally, the filter was washed with 5,000 litres of water.  Sugar syrup of 58 DEG  Brix and having a pH of 7 was then passed through.  The effluent syrup had a pH of 7.2 and was 97 per cent decolorised.  There was no formation of invert sugar.  The ammonium salt solution concentration is preferably 5 to 10 per cent. but may be 20 per cent.  An alternative salt is ammonium sulphate.  Specifications 650,706 and 698,353, [Group VI], are referred to.ALSO:A bed of decolorizing synthetic resin is brought to a pH value corresponding to neutrality by flushing it, after regeneration with alkali, with a solution of an ammonium salt having a weakly acid reaction, and finally with water. A filter containing 3,200 litres of resin was regenerated with 4,800 litres of a 5 per cent sodium carbonate solution.  The filter was washed with 13,000 litres of water, its pH then being in the range 11 to 12.  It was then flushed with 3,000 litres of a 5 per cent ammonium chloride solution, the pH of the liquid finally flowing out of the filter being 6.  Finally the filter was washed with 5,000 litres of water.  Sugar syrup of 58 DEG  Brix and having a pH of 7 was then passed through.  The effluent syrup had a pH of 7.2 and was 97 per cent decolorized.  There was no formation of invert sugar. The ammonium salt solution concentration is preferably 5 to 10 per cent but may be 20 per cent.  An alternative salt is ammonium sulphate.  Specifications 650,706 and 698,353 are referred to.
Patent GB-525621-A (GB)
Title: Improvements in or relating to the manufacture of carbon blacks, more especially foruse in rubber mixings
IPC: C09C1/52
Filed: 1939-02-23
Abstract: 525,621. Carbon black. SOC. ITALIANA PIRELLI. Feb. 23, 1939, No. 6099. Convention date, Feb. 25, 1938. [Class 90] In an impingement process for the manufacture of carbon black, of the type in which a mixture of a combustible gas with the vapour of a substance having a relatively high carbon content, such as naphthalene anthracene &c., is burnt at a burner and the carbon produced collected on a cooled surface, the combustible gas employed is water gas or a gas having a like high percentage of carbon monoxide, the mixture employed has a gas : vapour ratio of 1.5 to 2.5 cubic metres of gas to 1 kilogram of vapour and the said mixture is a simple mixture not containing material amounts of other constituents such as air or oxygen. The piping for conveying the gas vapour mixture is of stainless steel and the burners are of brass or phosphor bronze having parallel-sided slits of a width of between 0.2 and 0.75 mm. Water gas and generator gas are the gases preferably employed and the vapour that of anthracene. Specification 500,467 is referred to.
Patent GB-453333-A (GB)
Title: Improvements in door handles
IPC: E05B65/26
Filed: 1936-02-29
Abstract: 453,333. Door knobs. KERR, W. H., 82, Grosvenor Road, Leyton, London. Feb. 29, 1936, No. 6148. [Class 52 (i)] A door knob 4 which fits flush into a recessed casing is projected for use by a spring 10 on pressing a push button 17 to release a trigger 15 which automatically engages a hole 16 in the sleeve 8 carrying the knob as the latter is pushed in.
Patent GB-1093625-A (GB)
Title: Travelling wave tubes
Inventor: DUNFORD BRIAN
IPC: H01J23/26
Filed: 1965-02-12
Abstract: 1,093,625. Travelling wave tubes. STANDARD TELEPHONES & CABLES Ltd. Feb. 12, 1965, No. 6166/65. Heading H1D. A travelling wave tube has a helical slow wave structure supported between longitudinally extending rods and a helical wire binding secured at both ends to the support rods adjacent the respective ends of the helix and clamping the rods firmly about the helix. The rods are notched near their ends and a plurality of end turns of the helical wire binding are laid in the notches and secured to one another by brazing or wielding.
Patent GB-608972-A (GB)
Title: Improvements in or relating to attemperators or like devices
IPC: C12M1/02
Filed: 1946-02-28
Abstract: 608,972. Tubular heat exchangers. ALUMINIUM PLANT & VESSEL CO., Ltd., and PAINE, S. W. T. Feb. 28, 1946, No. 6237. [Class 64(iii)] in an attemperator for regulating the temperature of wort or other liquid during fermentation constructed in the form of an open frame-work constituted by tubular headers which are subdivided internally and spaced apart, and are inter-connected by tubular members of smaller bore through which water or other liquid is circulated in a continuous path, the internal divisions being formed by transverse baffles so disposed in the headers to enclose and contain the ends of pairs of adjacent tubular members to form inlets or outlets or return bends, inlet and outlet ports are arranged closely adjacent in the headers and are connected to tubular members passing through the baffles so as to provide a flow circuit from one port through the tubular members to the other port. A pair of tubular headers 1, la of stainless steel or other corrosion resistant material are inter-connected by tubes 2, and provided with trunnions 3 for mounting the structure on brackets 4 and allowing angular displacement of the structure to facilitate cleaning, a pin through trunnion bracket 4 and bearing plate 8 holding it in position. Internal baffles or discs 10 form spaces 12 acting as return bends for each pair of headers 2. The baffles are mounted on tube 14, which joins outlet space 12c with the tube 2 remote therefrom. Adjacent mounting of the inlet and outlet ports 15, 16 at one end of the header with flow of the cooling medium in a sinuous path through the whole of the tubular system is obtained by connecting the port 16 to an outlet space 12c, defined by a baffle 10 and a removable plug 17, and is connecting the space to a similar space 12b at the remote end of the header by a tube 14 passing through the baffles 10. In the modification shown in Fig. 7 the inlet and outlet ports 18, 19 are formed in one of the trunnions 3 thus avoiding decoupling the cooling water supply when rotating the attemporator for cleaning.
Patent GB-124911-A (GB)
Title: Adjustable Crutch for Invalids, Cripples and the like.
Inventor: YATES KATHERINE BASLER
IPC: A61H3/02
Filed: 1918-04-13
Abstract: 124,911. Yates, K. B. April 13, 1918 Crutches. - A crutch, of the kind in which side members are spaced apart and connected by top and bottom cross - pieces, is fitted with a movable handle and an extensible leg, and means are provided for adjusting the leg and handle relatively to one another and to the body of the crutch. In the form shown in Fig. 1, side members 7 are connected at the top by the crutch-head 8, and at the bottom fit into sockets 10 carried by a cross-piece 9. A screwed leg 12 passes freely through the crosspiece and screws into a nut 18 rotatably secured to a tube 16 attached to a slide 15 with embraces the members 7 and carries the handle 14. Nuts 13 are provided for securing the leg in an adjusted position. In this form the side-pieces 7 are of wood. When tubes are used, a frame member 9<a>, Fig. 3, is provided and nuts 13<1>, 13<a> substituted for the nuts 13. In a modified form, Fig. 4, the handle 14a and slide 15<a> are made up in one frame from tubes, the tube 16<a> being itself screwed and rotatably mounted in the handleframe. In this form, the side members are tubes and enter sockets in a cross-piece threaded to receive the screwed leg and made in two parts secured together by screws. The cross-piece may be in one piece and a set-screw provided for securing the member 12.
Patent GB-286257-A (GB)
Title: Improvements relating to the treatment of artificial silk and articles made of artificial silk, for rendering same waterrepellent
IPC: D06M13/188
Filed: 1928-03-01
Abstract: 286,257. Bemberg Akt.-Ges., J. P. March 1, 1927, [Convention date]. Waterproofing; proofing-compositions. - Artificial silk is waterproofed by treatment with an aluminium soap dissolved in an organic solvent, the soap containing at most twice the equivalent weight of fatty acid to three times the equivalent weight of aluminium. In an example, a solution in water of S per cent of grained soap having a fatty acid content of 80 per cent is poured into an excess of a concentrated solution of a basic aluminium sulphate having 1.2 hydroxyl groups to three atomic equivalents of aluminium. The soap is converted into an insoluble basic aluminium soap having a content of 9.6 per cent of Al2O3. Two kilograms of this soap are dissolved in 100 kilograms of trichlorethylene, and 4 kilograms of artificial silk are treated with the solution, warm, for a quarter of an hour. The solvent is then evaporated off. In another example, an aqueous solution of 8 per cent of cocoa butter soap having a fatty acid content of 84 per cent is poured into an excess of basic aluminium sulphate containing 1.5 hydroxyl groups to three atomic equivalents of aluminium. The resulting soap contains 11.6 per cent of Al2O3. 250 grams of this soap are dissolved in 20 kilograms of trichlorethylene, and the fabric treated as before. In a third example, the aqueous soap solution as in the first example is added to a concentrated solution of a basic aluminium sulphate containing one hydroxyl group to three atomic equivalents of aluminium. The aluminium soap thus produced contains 8.8 per cent of Al2O3. 750 grams of this soap are dissolved, with 3 kilograms of paraffin wax, in 100 litres of benzol, and used as before. Substances such as solid or liquid hydrocarbons, fats, fatty acids, paraffins or waxes, soluble in organic solvent, may be added to the aluminium soap.